How are emergency calls implemented in phones?

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Valera Udav2014-03-10 20:39:34

Iron

Valera Udav, 2014-03-10 20:39:34

The question arose, but nothing came of google: how is it possible to call emergency numbers without a SIM card and without network coverage in phones? If possible, I would like to see a detailed article, but a capacious answer will also do.

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vasiliev, 2014-03-11
@vasiliev

If I'm not mistaken, the networks of any operator available in the area are used.